Countersinking machine



' A.J.COUGHTRY. COUNTERSINKNG MACHWE.

APPLICATHJN FILED APR. 9,1920. 1 ,424,988- Patented Aug. 8, 1922.

4 $HEET$ SHEET I.

' INVENTOR,

Maw/@ 42 ATORNEYS.

A. J; coueumv. COUNTERSINKING MACHINE.

APPLICA'HON FILED APR. 5,1920. 1,424,988 Patented Aug S, 1922.

4 SHEETS-SHEET 2.

INVENTOR.

4TTORNEY5 WITNESS:

A. 1. COUGHTRY. COUNTERSINKING MAEHINE. APPLIUAHUN FILED APR. 9,1920. 1 ,424,988, 7 Patented Aug. 8, 1922.

4 SHEETS-SHEET 3.

i pigilg im INVENTOR:

WITNESS: rm

A TTORNEYS A. .l. COUGHTR Y. CUUNTERSINKING MACHINE.

APPUCAHON FILED APR. 9. 1920.

1 124,988. Patented Aug. 8, 1922,.

4 SHEETS-SHEET 4- INVENTOR. BY KW A TTORNEYS W! TNESS:

ARTHUR J. COUGH'IRY. 0F BETHLEHEMT, PENNSYLVANIA.

COUNTERSINKING MACHINE.

Specification of Letters Patent.

Patented Aug. 8. 1922.

Application filed April 9, 1920. Serial. No. 372.407.

To all, w/zum it mug wnr'wn lie it lqnuwn that l. Amnrl: J. L'ntuiiTnY, a (-itizt-n nl' thr l nitt'tl Status. liltl t5. it-siilent ul' Bvthlrhmn, in themnnty 0f Northamptnn and State if lvnnsylrunizi. haw invent ttl u wrtain new mul nwl'nl (.mmtersinking ll'rltlllllP. pi'n'hirh tlw fulluu'ilig in a specitiratinn.

This invention has for its UlJjt't't a mat-hine for SlHHIitEHHUHSl) pvit'nrming n plurahl; all liiu llilt't'ittifltlh m1 tlw work will prm itlml ltll moans lur i nit'li'ly sparing the twin tn mnfnnn to the sparing ul tlnurk us huhen tn he hurwl. re-unwtl ur t't)ti[ltt'l'- tun-wt. \i'hii-h nian'hinv is particularly Himph :unl vmnpm't in t-nnstrnvtiun. highly tlllfitlll illltl rapid in its uptl'zitinll lllltl readily shift.- uhle NH :1. unit from untltltililtili to amnthpr. thy lllill'llilll lit-r0 illnstrntml is tu pvr'iahy alhiptml l'ur l-rnmtvrsinking hnlvH \ihivh Ht'L' spared :zppruxinmtvlr vqniilistitnt apart. sin-h ns thv punvhttl rirut holcs 111 large platvs mull in ship hniltling. l have for run veninnrv nntl hi't-vity. rt'l ri'lml in it throughout the sptvifimtitm iilttl rhlims :19 21 001111 tt t'sitlklng mm'hinv. .hnt nln'innsiy it may hv ii ttl. fol rilllt! uilt't'zitinnn. that is. luuls uiht r limit ttltUtltIFli'lhlIt}: ItNilH may hi- :lttittlttti n thv marhinu.

The inW-ntiun vunsiwtn in thv nmul few titl'tn and in the t-t'lnilaiimtiuns ttlh'l mnstrnv lions hurt-inuftvr wt lurth mill (lilllllttl.

In tlPHll'llllIlg this invention. rt-fvl't-nrv in haul in the :u-rmnpanying drawings in which like *llillitt'ltfl'h tltwig'nate curi't'iqiunilii-lg' parts in all the Ylt NF.

Figure l is an uni -it\\ Hi an apparatus vn'ihmlying my inrvntinn. tlw t'mintrt'sinking: nmrhinc pmpt-r living shnvvn in sizh- Plowitinn.

Figure 4 a plain imi' tit tn-Ht'r; min Fig. 3. pa ts living ntnitiwl.

l'igizrv 5 i 1 F1" ,Qi'iliililillj. plan rimv. parts being omitted. inks-it zip n'uxinnlh-ly on the plunv 0f lino #4). Figure 3.

Fipflii ti an vnhtrgml rrrtiunul \itw thin-n on thtplunv ii linr Vi -t3. Fig. 4. the iflrivinglhult twin; omitted.

Fignrte T in sin and view of the machine and carriage themfiir hiukinw to the left in Fig. 1. the :iri lnas 0f the supporting frame being Ollilllittl.

Figure *4 is (m enlarged sectional View of tlw main supply valve.

Figure 9 is a plain \EHW, partly broken away of thefiilplitlt'iltig frame. illi plate on whirl] thv Illilt'lllllt is to (a ien-ate. being also Shown.

This t-utintersinking machine rumprises generally. a Frame. a plurality of tuul carriages sup 'mrlml hr fin; l'i'nmv. tool spindles jUtllItiiliftl in theititltlt. tho val'rlngg'es living lltUYZllllt rrhttirvl to (Each other tn spare the tools to minim-in tu thv wiring; of the hnles tu'hv lflil'Qtl Ht timintmminli. ll'l\ltl1f 11105119 for the spindles. .ttltl means f n shiftingthe curring-vs tn spurv tlw tnul spindles will tlil rliswnnwiing the $jjllitlltr; from the driving means.

The frame 1 111:1 he of any Sulitilllt! farm. Sin and trunstrnrtinn. it living here shown as l'nrmvtl with an angular horizontal guit'h Way 3 r0 the tuul titttlitflt'ti which art hPre shmvn as ztriangvtl pmnllt-l to rat-h o-iher and iltUlilllPtl tu -hi it rrhitiwly t marh other in Hfmt'e tlw t'l'itllfi illlil maintain their pztlttllEl. relation. All (if tlw i'zirringt's shit"! rnht tivvly to with ut'lwr vxwpt tho tilSt. al'n'i fin-- others nhift uniformly increasing ilistanirvs. That. is. :ISSIIH'liIJQ that ill! tnnlS 2W0 sprint l inn lnt'llts apart tllltl n. sparing (if thiti-e inc-hrs is tlvsirwl. the ser'mni tool wili hi shii'tetl 011v lltt'l] and the third lfifil tvcn int-luvs. thv fourth three inches. the fifth tool fnnr invhus. tln' ixth. five inches. etc. As here illnstratrtl the rurringzesa are formed with flanges 4 on thrir upper sides which hmr at 5| :IQHHIHt the downwardly itlt'll'lg surface of t'lw guitlrn'ay i? and 'llit'l'l are i'm'metl with angular flanges 6 at their free edges sliu'nhly inttrlnvking in :1 groove pns Hon 0? the gnicil-way 2.

flanges 5. in ntlwr mils. in the 1th ti'ili'ml lF-I in harm of my inwntium wit-h Parriagre a in harm oi :1 whip vhzmnel mentljmr and time chucks of any suitable construction on the spindles 9 below the carriages 3 for carrying suitable tools as countersinking tools 11. The first carriage is held from shiftabie movement as will be hereinafter descrihed. The spindles 9 may he of any suitable torn'u size and construction and as here shown each is mounted to more axially to feed the countersinking tools into the work. and is cou iosed of a plurality of sections as upper and lower end sections 12 and 13 and the intermediate section 14 which is connected to the sections 12 and 13 by universal joints 15. 16 of any suitable construction. The upper sections 12 extend above the carriages and into the frame 1 to enact with the driving means and the lower sections extend through bearings 17 carried by the lower flanges 8 of the carriages 3.

The mechanism for spacing the carriages uniformly increasing distances as here shown operates to move the rarriages simultaneously so that they maintain their parallel relation with each other and also their equidistant spacing but at a greater or less distance apart and said mechanism as here shown. comprises lazy tongs 15. the ele ments of which are pivoted at their intersections at 19 to the carriages respective] One oi? the end links 20 of the lazy tongs is rigidly connected to a hand lever 21 by means of which the lazy tongs are operated to fold and extend the same in order to move the carriages 3 along the guide of the frame 1. Obviously, by moving the handle lever 21 in one direction or the other all the carriages except one, will slide along the guideway 3 and hence adjust the spacing of the tools 1 The driving means for the spindle as here shown, includes an actuator common to all of the spindles as a belt 22 running over Wheels 23 mounted at opposite ends of the frame 1 one run of the belt engaging wheels 24 on the upper ends of the spindles 12. One of the wliecls 23 is mounted on a vertical drive shaft 25 journale l in the frame and in an alincd opening in an offset portion 26 of the first tool carriage. tlic shalt holding the first carriage from shift ing. This shaft is connected to a suitable Uliltfll of any desired type hcre shown as carr'c by n ilracliii-t 2? on the l'rolno l The is i as a spiw lo? litgiiil it or hlrlihlhi win i aaialiy in the '5 during thc lei-ding ol zi-qiuaiing DHHHH :in lower suction Hag moyulilo in a cylinder the bearing 17 for the sections iii and a supply pipe 30 for a motive fluid having extensible and shift-w lole branches 31 leading to the cylinders.

The main supply pipe 3!] is provided with :1 suitable valve 32 therein Fig. 8. and ,lll'li of the branches is also provided with a valve 32%. llach ol' the branches as here shown. includc sections associated rcspccthcly with the cylinders :29 and the main supply pipe Ill) and connected together by a ilcxihlc pipe ill, The moycmcnt of each piston 29 by the motive tluid is against a spring Ilia Fig 3, located in the cylinder i2!) bctwccn the piston 28 and the lower head ol the cylinder. This spring withdraws the spindles upwardly when the motive fluid is cut oil by closing the valve 232.

in order that the spindles maycenter themselves automatically the bearings 17 are mounted to shift slightly, said hearings extending through bolcs 36 in the lower flanges H. of larger size than the bearings of the rarriagcs 3. and the bearings arc also constructed to engage upper and lower laces of the flange H, and as here shown the lower head of each cylinder 20 engages the upper face of the ilange S and a nut 37 threading on the lower end of each bearing presses against the lower face of the flange 8. Usually suitablc anti-friction bearings 38 are interposed between the lower l ad of the cylinder and the upper face of the flange F4 and b tween the nut 34 and the lowcr l'ncc ol' said linngc.

In ship building lhc holes in the plates Jil to receive the rivets are punched in the blank approxiuuitcly equidistant apart all though their arc slight variations in the spacing and by reason of mounting the lower ends of the spindles so that they can shill; said spindles can shift and permit the tool to rcnlcr itself in the holes.

The frame I is supported or suspended from the main carriagc A] by a swiycl connection as a rod 41 extending through the vertical bearing 42 tired to lho frame 4 and tixcd at its lower end to a bracket iii secured to the frame 1 centrally then-oh nut 44 thrcads on the upper and (ii the rod and holds thc saluc i'roin undwisc morcnicnl. The rarriagc ll] is provided with whe l or rollers 4? which lllUH' along on-rlicud li'aclw l6 on an UWIlHZHl truck 4? which truck is proiid d nilli rollcrs 1H :ll ll cir ends mow l lo along ll;l(l\:- lll supporlcd by suitable raining or i! Ink 'ile E 1; niid 4i? licrc slum n in illt u: oi Lin-aims l3 and l ppcr and inner an o loot-r llaw oi ill Phenols. l lic l l'ullic i i" lll'bilil i illcs hy wl it is sh lion o: torso-d: wit Ehi ll will! suitable limo l n no",

lOl

Ill

on moves the truck 47 along the tracks 49 and also moves the carriage it) along the tracks 46 until the tool carriage l is at any desired starting point on the plate (I), By operating the handle 21. the tool carriages can be spaced a required distance apart to conform to the spacing of the holes to he bored or to be countersunk.

The motor which is running constantly in the operation of the machine. rotates the tool spindles and the pressure of the motive fluid in the pistons 28 feed the tool spindles axially into the work. When such holes are being countersunk the tools It enter the holes and the spindles center themselves owing to the sliding bearing 17 on the lower ends of the spindle.

When the operation is completed the valve 32 is closed permitting the springs 35 to withdraw the tools from the holes. The frame '40 is then shifted along the tracks 4b to another set of holes and the operation is re eated.

'hen a transverse row of holes has been countersunk, the tool carriage l is moved about its swivel 41 to position the tools so that they stand in a row lengthwise of the sheet and the operation repeated, and durin the shifting from one location to the 'ot er, lengthwise of the sheeting, the truck frame 47 moves on its rollers 48 along the tracks 49.

My invention is particularly applicable for counterboring holes on plates used in ship construction, and as will be obvious to those skilled in the art, such holes can he counterbored in a much less time than by the methods and machines now used.

W hat I claim is:

1. In a countersinking machine, the conr bination of aLframe, tool carriages mounted on the frame and movable toward and from each other to space the same apart,.tool spindles .mounted in the carriages, the spindles being mounted to adjust themselves radially whereby each spindle centers itself independently of the other spindles, means common to all the carriages to simultaneously move them along the frame to vary the spacing of the tools, and driving means for the sp1ndles,-substantially as and for the purpose specified.

2. In a countersinking machine, the com bination of a frame, tool carriages mounted on the frame and movable. toward and from each other to space the same apart, tool spindles mounted in the carriages, the spindles being mounted to adjust themselves radially whereby each spindle centers itself independently of the other spindles, means common to all the carriages to simultane ously move them along the frame to vary the spacing of the tools, and driving means for the spindles, the spindles being shift able axially relatively to the driving means toward and from the work, substantially as and for the purpose set forth.

3. in a countersinking machine, the combination of a frame, tool carriages mounted on the frame and movable toward and from each other to space the same apart, tool spindles mounted in the carriages, means common to all the carriages to simultaneously move them along the frame to space the tools, driving means for the spindles, the spindles being shiftable axially relatively to the driving means toward and from the work, and also having an adjustin movement radially in all directions where y each spindle centers itself relatively to the work ndependently of the other spindles, substantially as and for the purpose described.

4. In a countersinking machine, a frame, a plurality of tool carriages mounted on the frame and movable toward and from each other l'elatively to each other to s ace the same apart, tool spindles mounte in the carriages, the spindles including upper and lower sections and intermediate sections connected by universal joints to the upper and lower sections, drivingvmeans connected to the upper sections and the upper sections being movable axially relatively to the driving means, the lower sections being mounted to have a centering movement radially in all directions independently of each other,

means common to all the marriages for simultaneously movin'g them along the frame to space the tools, and means for feeding the spindles axially toward and from the work, Euhstantially as and for the purpose speci- 5. A machine of the class described comprisipg carriages having openings therein, a plurality of tool spindles extending throu h the openings, bearings for the spind es in the openings, each bearing being of less diameter than the iopening in the carriage, means for engaging the carriage 'to hpld said carria e from axial movement whereby each hearing is shiftable radially relatively to the carriage in all directions to center the tool relatively to the hole to be countersunk independently of the other spindles, and means common to all the carriages for s acing them apart, substantially as and for t e purpose set forth.

In testimony whereof, I have hereunto signed my name, at Bethlehem, in the count of Northampton, in the State of Pennsy vania, this 31st dav of March, 1920.

ARTHUR J. GOUGHTRY. 

